How it works
Spray coverage is simply tank volume divided by the total application rate (water plus chemical) per hectare. Knowing it tells you how many fills a paddock needs and how much chemical to add per tank.
Worked example
2,000 L tank ÷ 100 L/ha = 20 ha covered by one tank. A 40 ha paddock would therefore need 2 full tanks.
Assumptions & limitations
Assumes the boom is correctly calibrated and the stated application rate is the actual delivered rate at your operating speed and pressure. Always confirm the rate by a measured calibration run.